ref #6694 Make text field editable only when feature tree is selected
ref #6694 Beautify alignment of feature tree editor
ref #6694 Remove moved feature node after drag and drop
ref #6694 Implement selection propagation in feature tree editor
ref #6694 Set FeatureTree editor dirty after drag and drop
ref #6694 Improve UI and feature tree creation
ref #6694 Handle dirty state when adding/removing features
ref #6694 Implement Feature Tree Editor